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Wheel drive unit
US8961361B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8961361-B2 |
| Application number | US-201314078136-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 12, 2013 |
| Priority date | Nov 14, 2012 |
| Publication date | Feb 24, 2015 |
| Grant date | Feb 24, 2015 |
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Abstract
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A wheel drive unit includes: a planetary gear mechanism including a planetary gear and an internally-toothed gear; a casing integrated with the internally-toothed gear, a wheel being attached to the casing, and the casing transmitting rotation of the internally-toothed gear to the wheel; a bearing nut configured to prevent axial movement of the casing; and an oil seal provided more toward an interior of a vehicle than the planetary gear mechanism and axially fixed with respect the casing. An inner diameter of the detachment prevention member is smaller than an outer diameter of the externally-toothed gear.
First claim
Opening claim text (preview).
What is claimed is: 1. A wheel drive unit for a vehicle, the wheel drive unit comprising: a planetary gear mechanism including a planetary gear and an internally-toothed gear; a casing integrated with the internally-toothed gear, a wheel being attached to the casing, and the casing transmitting rotation of the internally-toothed gear to the wheel; a movement restriction member configured to restrict axial movement of the casing; and a detachment prevention member provided mo…
Assignees
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Classifications
- F16H57/08Primary
Mechanical Engineering · mapped topic
- B60K17/046Primary
Operations & Transport · mapped topic
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Frequently asked questions
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- What does patent US8961361B2 cover?
- A wheel drive unit includes: a planetary gear mechanism including a planetary gear and an internally-toothed gear; a casing integrated with the internally-toothed gear, a wheel being attached to the casing, and the casing transmitting rotation of the internally-toothed gear to the wheel; a bearing nut configured to prevent axial movement of the casing; and an oil seal provided more toward an in…
- Who is the assignee on this patent?
- Sumitomo Heavy Industries
- What technology area does this patent fall under?
- Primary CPC classification F16H57/08. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Feb 24 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).